Dear 201831061028, please update SPM12 and CAT12 and check writing permission of your folder. Best, Christian On Mon, 18 May 2020 22:13:27 +0800, 戴向唯 <[log in to unmask]> wrote: >Dear all, >I want to explore the relationship between the level of depression symptom and the thickness. After resampled and design matrix, I performed a regression analysis according to the CAT12 manual. The output spm.mat file seems fine. But when I estimated it (I used estimate surface models in CAT12), there were sth. wrong. > >Undeinded function 'permission' for input arguments of type 'struct'. What does this mean? >Could any one help me solving this error? Any possible explanation will be appreciated. > > > > > > > >